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Name system seats by scope; let a module define its own (ADR 0121)

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System seats are mesh-* (one, mesh-wide) or node-* (one per node). Renamed:
the-build-machine -> mesh-build-machine (+scope mesh), the-catalogue ->
mesh-catalog, the-dns-port -> node-dns-resolver, the-intrusion-prevention ->
node-intrusion-prevention, the-packet-filter -> node-packet-filter,
the-resolver-configuration -> node-resolver-config, the-uplink -> node-uplink.
Removed the-showcase from the set — it becomes the first module-defined seat.

A manifest may declare its own seats (DefinesSeats); a claim is a system seat,
a reserved mesh-*/node-* name the mesh does not define (refused), or a
module-defined seat valid only when the manifest declares it.

Deferred: the delivering registry seats (git, npm-package-registry,
the-artifact-store) and the-private-network (a scope + server/client model
change), per ADR 0121.
This commit is contained in:
jschoubben
2026-09-27 14:30:56 +02:00
parent a6d89e3f73
commit 1c56210530
5 changed files with 105 additions and 34 deletions
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cmd/mesh-controller/seats_test.go
+4 -4
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@@ -35,13 +35,13 @@ func TestEverySeatIsListedIncludingTheOnesNobodyHolds(t *testing.T) {
func TestANodeSeatListsEveryMachineHoldingIt(t *testing.T) {
rows, _ := seatsHeld(catalogue.Seats(), []catalogue.Held{
{Claim: "the-packet-filter", Scope: catalogue.ScopeNode, Node: "node2", Module: "nftables"},
{Claim: "the-packet-filter", Scope: catalogue.ScopeNode, Node: "anchor", Module: "nftables"},
{Claim: "node-packet-filter", Scope: catalogue.ScopeNode, Node: "node2", Module: "nftables"},
{Claim: "node-packet-filter", Scope: catalogue.ScopeNode, Node: "anchor", Module: "nftables"},
// Resolved twice, reported once: a machine is one holder however many passes saw it.
{Claim: "the-packet-filter", Scope: catalogue.ScopeNode, Node: "anchor", Module: "nftables"},
{Claim: "node-packet-filter", Scope: catalogue.ScopeNode, Node: "anchor", Module: "nftables"},
})
for _, r := range rows {
if r.Seat != "the-packet-filter" {
if r.Seat != "node-packet-filter" {
continue
}
if len(r.Holders) != 2 || r.Holders[0].Node != "anchor" || r.Holders[1].Node != "node2" {